Manthan Darji made his big-screen debut as a supporting actor in YRF’s action entertainer WAR 2 (2025), directed by Ayan Mukerji. The film starred Hrithik Roshan, NTR, and Kiara Advani in lead roles. In the film, Manthan Darji plays the younger version of Major Kabir, the character portrayed by Hrithik Roshan.